Antifriction-bearing.



ANHFRICNON BEARING.

APPLICATIGN FILED IAN. 10, 15MB.

menfd Apg@ 22, E919.

fifi) 56H31' "(17. SSGHATZ,

YRE'.

F PDUGHKEESIE, NEW YBK, ASSIGNOR F ONE'THIRG 'EO lEEllv' AN A. SENATE AND ONEJEHIRD TO GROVER SCHATZ, BTH

ANTFRICTION-BEMMN Specication of Letters Patent.

Patented Apr., 22,

[application filed January 1G, 191B. Serlel No. 211,125.

To all imi-0m 'it /nmy/ concer/a w i it knewn that l, JOHN W. Scim'rz, a K:til/.en ot' the United States, and a resident ot the city et lloughkeepsie, county of llutrhess, and State et Newv York, have inrentifid a new and useful lmproveinent in .antifriction-llearings, or ivhioh the 'following' is a speciiieation, reference being had to the :icoonipanying drawings.

The use el? antilrietien bearings of various constructions has enormously extended dur recent years, their adaptability to various forms olf meehanisn'i for the accomplishment of various results having been more and more recognized as the perfection in their manufacture and their reduced oost have troni time to tilne developeih'so that at the present time large nunibers oft such loearino's are used as antilriction supports for a rotatine shalt, axle, or equivalent member, and other large ni'unbcrs are made annular in :torni and are ennyloyed under cireumstances in Whieh the shaft or axis is stationary, and 'the hearing` rotates about it, after the fashion el a Wheel or roller, yits annular exteriorl surperiphery acting as Ythe tread therelv i rention. while useful in ball bearn i adapted to various uses, more especially re to bearings adapted to this latter use, and f enerally stated, it consists in so constructing the hearing that its parts shall be liew, solid and enduring, and particularly that its outer peri pheial part shall be of in creaz-ied thickness, compared with bearings off the fan'ie elass as heretofore made, so that its ani-ruraiouter or peripheral surface shall be able to withslai'id long` continued use and weer without such reduction in the thickness or metal and consequent strength as will result in iwalreninr; the bearing as a unit. My invention also contcuiplates the use oi' such Weight or body et' material in the outer annular casing' or jacket ot' the bearing as 'that the wenz waking, or tread surface thereof shall 'be capable of case hardening, or

equivalent treatment, and yet its inner portions remain sutlii'ziently soft to permit ofshearing` or ,sw-aging operations. My invention also contemplates the en'iployment of a plurality ol"- eXternal cup rings made from solid n'mterial in conjunction with a single, solid cone er inner raee ring', and it also includes thc process by which the hearings are inside,

Referring to the drawings, Figure l is an edgewise vertical seetional View olf the jacket or exterior confining ringin in its primary condition; Fig. 2 is a View similar to Fie'. 1, one of the inwardly projecting' ledges :for supporting the exterior cup rings having; been formed on one edge ot' the jacket; Fig. 3' is a 'View similar to Figs. l and 2, showing' the bearingassembled into a unit. or seht-contained structiu'e complete within itself, the jacket having,v bot-h of the inwardly projecting' ledges formed thereon., `whereby the parts are held in position; Fig. 4- is a vertical sectional view, partly broken away, showing); a modified construction; Fig. 5 is a vertical sectional view, reduced in sirJ as compared with the other views, of still another modiied construction; Fig. is aiface View ot halt ot that which is shown in lzlipg'. 5.

1, see Fig. 3, is the cone or inner race ring. ln the example shown it is made ot a single `integral piece. 2, 2, are the balls, 3 and 4 the outer cup rings, 5 the exterior jacket or contining ring.

ln the manufacture of the bearing, the jacket is inthe first instance in the forni shown in llig. l, that is to say, it is an in-l tegral annulus or ring, which may be made in sueh manner, desired, but preferably eut from a steel tube oit proper quality and of the desired diameter or drawn out or a fiat sheet or suitable material into cup shape, which is developed' into a ring of the re quiredi dimensions by suitable punching; and turning operations, the tl'iickness of the ring' being such as Will be appropriate tor the de! corner or edge of the ring, the tools With' which this Work is done being made with such accuracy and the power exerted being" such that no machining, either of the ring; or the ledge 6, is necessary, although such may he employed, it desired. The outer cup rings 3 and 4f, are made troni solid stock uw Leonesa el' suitable dies, or by fr cold forging from bar preferred, .they are i e shown best in Fig. 8,

the inner annular suror race for the balls, or such shape in Cross secl, and upon the outei' surface :pted to tit against and be f ledges or flanges 6 'formed rior el" 'the jacket or outer ring. mii/'ig' the bearing it is advanailopi: the following method or 5E inning; been subjected to the l airing operation, which has i'orniation oli the inwardly G, as shown in Fig. 2, is :i .dile horizontal support, with downward. Thereupon one of the for er n'iple, the cup .ring 3,'is i a jacket, which may easily be ledge or flange li on the ring; is then pressed downhe jacket until it 'iests A"e ledge or A[lange 6. The .i e l is then located cene jacket 5, the balls 2, 2, are intiot..ice(l, the second ycup ring 4 is i placed within the 'jacket 5 and amrnwardly into contact with the with the appropriate surface of in@` il which. was iirst introduced. ith the parts thus assembled, 1 again subjected to the action wine' and swaging devices, and ledge or flange 6 upon the ai' the jacket is formed, as sl. 'llic construction and ma.- ne tools employed and of the firing' and supporting the seve assembled unitary bearing", that there results a vperfect eine; of all its members; and .ieularly noted that at the l. can case harden' or othgreat the entire peripheral thus greatly increasing,` ing' quality and still keep the where the shearing and swagns are performed, suiiiciently purpose. This is an important. vauialfile phase of my invention, diy l am enabled to use my olle; or wheel Without its rei indefinite period any apr o bfne otherwise acted upon :at its holding;` and binding' in jurionsly affected.

hina e ronstruction the saine iirhtly diiierent in details, land in the other ligures.v

, jacket has not yet been `which project beyond ln it l designate the referencel nnnierals and call i, to the 'tact that the oi er clip are in this construe made made from open hea carhen, or alley liardesed and steel, suitably heat treateti.

lett sa 7;, heitere.,

tempered. They may be if so desired; 4

ln the manufacture et' relatively larve bearings, .l sometimes i'aeili ite tie pro cednre and avoid certain niecaai'iifeal d cnlties by making' the ii Y.' v projectii ej ledges in sect-ions, :is sli-own 5 and il. These sections may be as many a number and spaced as far apart preilerred. these gures l show in :.inll lines the 6 made in four seinirateir ztiens. or pa s. ln Fig. G l show in breken lines additional sections located between these shown in lull 90 lines, thus inrlieetiiiggthat the nui'nber oi: the sections and the extent to which they spaced from each other entirely a matter of preference.

1t will be noted that iny bearinn 'is a` 9 tary or self contained .f rnctnre, which whenl completed cannot thereafter be disassembled, With the result that there no parte which can become loosened in use and thus occasion lost motion, Wear or other objectionable development; and these features my invention I refer to when herein in 'the claiins hereof use the expression a eelt-contained are cut frein the jaelret ar so that they are not se; .distance the width er wat the race of the jacket. Consequently e lges the jacket 'these afford protection to then). and prevent tieir being deformed or injured by ce tf other parts. My bem-ingY is bined bodily with any app members of another mach that it is unusually inexpensive ture and is durable in Construction, and that it is peculiarly adapted te operate a' roller or wheel, owing` to its annular exterior holding member, which serves .as the tread or Wearing surface, being thiclr and heavy in construction, its outer or peripheral snrface beingspecially hardened, il; desired. r@he improved bearing may, course, given any preferred iinish accuracy, 'that is to say, it i' un ground, semi-ground Mnll ground.

l wish it to be understood that do n disclaim or abandon the disclosed but not claimed herein in etliod cup rings,

new bearing may be made because the same will, so far as may be permissible, be claimed in a divisional ease hereof, Serial No. 255,066 filed September 21, 1918.

it will be obvious to those who are fa iniliar with such matters that within the Scope of the claims the details of construe tion may be departed from and still the essentials of the invention be retained.

li claim:

1. A. self-contained, annular, unitary bean ing embodying an inner race, an outer race comprising two unbroken annular cup rings, an exterior integral ring like jacket having an annular and 'substantially flat outer surface and having also inside of each of its inner edges an inwardly projecting integral ledge against which the two cup rings oi the outer race `are supported respectively, and balls between the inner and outer races.

y2. A self-contained, annular, unitary bearing embodying an inner cone or racc, an. outer race comprising two unbroken annular an exterior integral ringlikev jacket having an annular substantially Hat and hardened peripheral surface and hav ing also inside of each of its inner edges an inwardly' projecting integral ledge against which the two cup rings off the outer race are supported respectively, and balls between the inner and outer races.

3. A self-contained, annular, unitary bearing, embodying a cone or inner race, an outer.

race comprising two unbroken annular cup lrings, anannular exterior jacket having two series of inwardly projecting ledges, one se rica near but inside of each edge of the j aclret, against which ledges respectively the twocup rings of the outer race are supported, and bal le between the inner and outer races.

5. A self-contained, annular, unitary bearing einbodyingua cone or inner race, an outer race, an annular exterior jacket having a substantially iat and hardened peripheral surface, and two series of inwardly projectn ing; ledges, one series near but inside of each edge of the jacket, against which ledges respectively the outer ace is supported, and balls between the ein ,r and inner races.

ln testimony whereof i have signed n'iy naine to this speciiication.

JOHN W. SCHATZ. 

